63957967584 has 96 divisors (see below), whose sum is σ = 191975132160. Its totient is φ = 18264064512.

The previous prime is 63957967537. The next prime is 63957967607. The reversal of 63957967584 is 48576975936.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1301737 + ... + 1349975.

It is an arithmetic number, because the mean of its divisors is an integer number (1999740960).

Almost surely, 2^63957967584 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63957967584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95987566080).

63957967584 is an abundant number, since it is smaller than the sum of its proper divisors (128017164576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63957967584 is a wasteful number, since it uses less digits than its factorization.

63957967584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50232 (or 50224 counting only the distinct ones).

The product of its digits is 342921600, while the sum is 69.

The spelling of 63957967584 in words is "sixty-three billion, nine hundred fifty-seven million, nine hundred sixty-seven thousand, five hundred eighty-four".